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# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
inherit toolchain-funcs flag-o-matic eutils
DESCRIPTION="A yacc-compatible parser generator"
HOMEPAGE="https://www.gnu.org/software/bison/bison.html"
SRC_URI="ftp://alpha.gnu.org/pub/gnu/bison/${P}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86"
IUSE="nls static"
DEPEND="sys-devel/m4
nls? ( sys-devel/gettext )"
src_unpack() {
unpack ${A}
cd "${S}"
epatch "${FILESDIR}"/${PN}-1.32-extfix.patch
}
src_compile() {
# Bug 39842 says that bison segfaults when built on amd64 with
# optimizations. This will probably be fixed in a future gcc
# version, but for the moment just disable optimizations for that
# arch (04 Feb 2004 agriffis)
[ "$ARCH" == "amd64" ] && append-flags -O0
# Bug 29017 says that bison has compile-time issues with
# -march=k6* prior to 3.4CVS. Use -march=i586 instead
# (04 Feb 2004 agriffis)
#
if (( $(gcc-major-version) == 3 && $(gcc-minor-version) < 4 )) ; then
replace-cpu-flags k6 k6-1 k6-2 i586
fi
econf $(use_enable nls) || die
use static && append-ldflags -static
emake || die
}
src_install() {
make DESTDIR="${D}" \
datadir=/usr/share \
mandir=/usr/share/man \
infodir=/usr/share/info \
install || die
# This one is installed by dev-util/yacc
mv "${D}"/usr/bin/yacc "${D}"/usr/bin/yacc.bison || die
# We do not need this.
rm -f "${D}"/usr/lib/liby.a
dodoc AUTHORS NEWS ChangeLog README REFERENCES OChangeLog doc/FAQ
}
pkg_postinst() {
if [[ ! -e ${ROOT}/usr/bin/yacc ]] ; then
ln -s yacc.bison "${ROOT}"/usr/bin/yacc
fi
}
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